A026689 - OEIS

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A026689 as a simple table

`n`		`a(n)`
`0`		`1`
`1`		`1`
`2`		`4`
`3`		`6`
`4`		`18`
`5`		`27`
`6`		`82`
`7`		`138`
`8`		`390`
`9`		`644`
`10`		`1837`
`11`		`3242`
`12`		`8835`
`13`		`15271`
`14`		`42086`
`15`		`76403`
`16`		`203377`
`17`		`361636`
`18`		`974089`
`19`		`1802727`
`20`		`4718991`
`21`		`8559441`
`22`		`22673687`
`23`		`42562209`
`24`		`110006420`
`25`		`202537249`
`26`		`529643894`
`27`		`1005279834`
`28`		`2572145945`
`29`		`4791823354`

[1,1,4,6,18,27,82,138,390,644,1837,3242,8835, 15271,42086,76403,203377,361636,974089,1802727, 4718991,8559441,22673687,42562209,110006420, 202537249,529643894,1005279834,2572145945, 4791823354]

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Last modified August 10 19:25 EDT 2024. Contains 375058 sequences. (Running on oeis4.)